NDS Editions

The 2018 National Design Specification (NDS) for Wood Construction and 2018 NDS Supplement: Design Values for Wood Construction are currently only available as "free view-only downloads" in PDF format below. The NDS Commentary and other support documents are being developed and will be available first quarter of 2018 as part of the 2018 Wood Design Package. At that time, print versions of the 2018 NDS with Commentary and 2018 NDS Supplement as well as printable PDFs will be available for purchase.

NDS for Wood Construction, 2018 Edition

The 2018 National Design Specification (NDS) for Wood Construction was developed by the American Wood Council's (AWC) Wood Design Standards Committee and is referenced in the 2018 International Building Code. Significant additions to the 2018 NDS include new Roof Sheathing Ring Shank nails and fastener head pull-through design provisions to address increased wind loads in ASCE 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures.

NDS Supplement: Design Values for Wood Construction, 2018 Edition

Design provisions in the NDS are integral with design values in the NDS Supplement. As such, it is not appropriate to mix design values and provisions from different editions of the NDS. The NDS Supplement contains design values for sawn lumber, structural glued laminated timber, and round timber poles and piles.